

I’m having a bit of trouble figuring out how to phrase this sort of thing. I’m
thinking of this in the context of “acknowledging that someone has formally
done a service for another”.

Examples might be: some kind of event presented to its guests _courtesy of_
their sponsor, a delivery completed _courtesy of_ a shipping service, a gift
given _courtesy of_ the help of someone else.

Alternatively, yourself providing a gracious service to another
person—“courtesy of yours truly”? I’d like to get a comparison of what to do
versus what _not_ to do when trying to say something like this, if possible.
I’m not sure how you would approach this sort of phrasing politely, versus
politely-but-arrogantly.

I feel like this must be a grammatical construction/keigo thing, but I’m not
sure whether it’s something you’d use sonkeigo or teneigo, etc. for?


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grammar politeness english-to-japanese keigo
How would you express the phrasing “Courtesy of [x]” in Japanese?


You can use [提供](https://jisho.org/word/%E6%8F%90%E4%BE%9B) like this:

  * この写真はAによる提供です。  
This picture is courtesy of A.

  * 無料WiFi提供: A  
Free WiFi courtesy of A

  * 本イベントのライブ配信はAの提供でお送りします。  
Live coverage of the event is courtesy of A.

  * お菓子はAに提供していただきました。  
These snacks are courtesy of A.


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You could use おかげで, for example (taken from
[WWWJDIC](http://nihongo.monash.edu/cgi-bin/wwwjdic?1Q%A4%AA%B1%A2%A4%C7_1_)):

  * 彼の尽力のおかげで、それは予期以上の成功であった。  
Thanks to his efforts, it was more successful than we had expected.

  * 彼らのおかげで私はやっと元気になった。  
Thanks to them, I got well at last.

  * この機会のおかげで私たちは大いに手間暇が省けた。  
Thanks to the opportunity, we were able to avoid substantial effort.

提供 relates to providing, offering or donating something, whereas おかげ implies a
more causal relationship (and can also be either positive or negative, e.g. "I
was late to work thanks to my broken alarm clock"). You can also use
[おかげさまで](http://nihongo.monash.edu/cgi-
bin/wwwjdic?1MDJ%A4%AA%A4%AB%A4%B2%A4%B5%A4%DE%A4%C7), which is commonly used
to express thanks for someone's assistance.


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